Self-feeder for threshing-machines.



A. J. PETERSON.

SELF FEEDER FOR THRBSHING MAQHNES.

APPLIUATION FILED 113112111911, nmnxwfm AUG. 17, 1014. l 1 32,731

Patented Mar. 23, 1915.

3 SHEETS-SHEET 1.

THE MORRIS PETERS C0.. PHD1O-LITH01. WASHINGIDN. b1 C.

A. J. PETERSON. SELF FEEDER FOR THRESHING MACHINES. APPLIOATIONHLBD 11110.20, 1911. RENBWBD AUG. 17.y 1914.

Patented Mar. 23,1915.

s 'snmz'rs-SHEET 2.

THE NORRIS PETERS CO1, FH0T0LITHO1. WASHINGTON. l.)4 C.

A. J'. PETERSON.

SELF FEEDER POB. THRESHING MACHINES.

APPLICATION FILED mazo, 1911. BBNBWBD AUG. 17. 1914.

. Patented Mar. 23, 191,5.

3 SHEETS-SHEET 3. jay, 3

.n NURRIS PETLK: nu.. rnvlU-LITHO.. WSHINGTIL", :'J. C.

ran s ANDREW J. PETERSON, or rsANrr, MrNNnsorA.

SELF-FEEDER FOR 'THRESHING-MACHINS. i

Specification of Letters Patent.

Patent-ea Mar. as, 1915.

Applicationnled December 20, 17911, Serial No. 666,878. Renewedl Vugust17, k1914. i Serial No. 857,264. i

Threshing-Machines; `and I do hereby de Y Vclare the following to .be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to V.which it appertains to make and 'use the'same.

Myinvention has for its object to provide an improved'band cutter and feeder for threshing machines, vand the invention is directed particularly to an fimprovedarrangement `of feed vrollers located between the Vband cutters `and the threshing cylinders,and serving-to spread Vout and evenly distribute the grain after the bands have been, cut, and to thereby .produce an even and uniform delivery of the grain tothe threshing'cylinder and concave.

Generally stated,1the inventionconsists of the novel devices and combinations of devices hereinafter `described anddeined in the claims. p

In the accompanying drawings which illustrate the invention like characters `indicate like :parts throughout'the ,several views.

Referring to the drawings: Figure 1 isa view in left side elevation showing the improvedband.cutter and 'feeder applied to a threshingv machine, some parts being broken away. Fig. 2 is a -vertical section of the `parts shown in Fig. 1; Fig. -3 is a right side elevation of the lparts shown in Fig. 1, .portions being broken awaypFig. 4 is a view partly in plan and partly in section von the line m4 m4 of Figs. 2 and 3,' and Fig. 5 is a ,section taken on the line m5 of Fig. 4.

=Of the Vparts of the threshing machine shown, the numeral 1 indicates Vthe'machine case, the'numeral 2 the front wheels, the numeral 3 the threshing concave, and the numeral 4 the threshing cylinder, which latter is secured on the Vusual shaft' .5 provided with a .pulley 6 at one end.

The numeral 7 Vindicates the kusual hoodV of the band cutter andv yfeeder the same being preferably pivoted at 8.

`9 indicates the braced frame work rigidly secured to the front end of the machinecase and frame work.

The hood 7 has the usual hinged extension 10. The bundle feeding belt 11 runs over rollers 12and 13 journaled respectively in vr-rica. l*

the hood 7 and to the outer end of the hinged section 10. Also `thesaid feed belt. 11 runs over a deck 14 made up of two sections, one of the sections being secured to the hoodv and the other to the said hinged section 10. The inner roller 12=is secured on a shaft 15 eX- tended through the sides Vof the hood 7 and provided at one end with a llarge sprocket wheelV 16 and a smaller sprocketwheel17. (See Fig. 3)'. Y v

lTheblades 18 of the band ycutter are preferably of the usual form and are-secured in the customary way to a shaft 19 journaled in the sides of the hood 7 and provided at one end with a sprocket wheel20, and at its other end with a sprocket wheel 20a. This y These distributing `,rollers 22'are preferablyV made .fromisheet metal, but may be other-V wise formed. They are arranged in coperating pairs with one member of each pairv above the other member so that the loose grain or cut bundles will pass between the same.` Each roller is provided with longi-f tudinally i spaced or laterally yoff-set toothed or lug equippedrims or sections 23 which not onlyl increase the feeding efficiency of the rollers, but operate to spread out and laterally distribute the loose bundles. These teeth or lugs 23 constitute longitudinally spaced diametricallyincreased sections on` the rollers 22. To further increase this 'action,'thetoothed portionst23 of the outer rollers are laterallygset out -ofli-ne with the toothed'portions ofthe inner rollers so that they oppose smoother toothless portionsof the cooperating rollers.4 '(See particularly Fig. 4); The toothed portions 23 of 'the f 'outer ypair-of rollers are in the same vertical obvious in planes oset from the vertical planes of the toothed portions of the saidV l appear in the description of the operation.

The upper roller 22 of the outer pair has a shaft 24 j ournaled in the sides of the hood 7 and provided at one end with a large sprocket 25 (see Fig. 1) and at its other end with a sprocket 26 (see Fig. The lower roller 22 of the outer pair has a shaft 27 journaled in thek sides of the hood 7 and provided at one end with a sprocket 28 (see Fig. l) and at its other end with a sprocket 29 and a gear 30, (see Fig. 3). The upper roller 22 of theinner pair has a shaft 31 journaled in the sides of the hood 7 and provided at one end with a sprocket 32 (see Fig. 3). The lower roller 22 of the inner pair has a shaft 38 journaled in the sides of the hood 7 and provided at one end with a sprocket 34 (see iFig. 1).

The upper rollers 22 are vertically movable in respect to the lower rollers 22 and are preferably spring pressed downward by suitable springs 35 made adjustable by set screws 86 and, hence, the upper roller shafts 24 and 31 are directly7 ournaled in bearings 37 mounted for vertical movements in suitable slots or seats formed in the sides of the hood 7. Preferably, also, the teeth of cooperating upper and lower rollers 22 are so set that they may intermesh with each other when the upper rollers are dropped to their lowest possible positions. This will increase the certainty or positiveness of the feeding action of the said rollers, because the teeth, with this arrangement, will kink the grain and get a better hold thereon.

On that end of the band cutter shaft 19 to which the small sprocket 20a is secured, a

large pulley 38 is also secured. A belt 39 runs over said large pulley 38 and is driven by the pulley 6 on the shaft 5 of the threshing cylinder. rIhe said threshing cylinder will be driven in the usual well known way. A sprocket chain 40 runs over the sprocket 20a and over a large reducing sprocket 41 journaled to the adjacent side of the hood 7 and carrying a small sprocket 42 on its hub. A sprocket chain 43 runs over the said sprocket 42 over the larger-.sprocket 25 on Vthe shaft 24 of the upper outer roller 22.

Said chain 43 also runs over idle guide wheels 44 journaled on the adjacent side of the hood 7 (see' Fig. 1). A sprocket chain 45 runs over the sprockets 28 and'34 on the shafts of the lower rollers 22.

Referring to Fig. 3, it will be noted that a sprocket chain 46 runs over the sprockets 26 and 32 on the shafts of the two upper rollers 22. A sprocket chain 47 runs over the sprocket 2O on the band cutter shaft 19,

and over a large reducing sprocket 48 journ naled on the adjacent side of the hood 7 and carrying on its hub a spur pinion 49 that meshes with the gear 30 which is on the shaft 27 of the outer lower rollers 22. A sprocket chain 50 runs over the sprockets 29 and 17 which are on the roller shafts 27 and 15 respectively. A sprocket chain 51 runs over the sprocket 16 of the shaft 15 and over a sprocket 52 which, through a suitable crankshaft 53 (see Fig. 2), serves to vibrate the deck 21 in the usual way..

The operation of the said belt 11, of the band cutter 18 and of the threshing cylinder are all so well known that detail description thereof is not necessary.

As all persons familiar with the operation of threshing machines well know, there is a tendency for the grain to accumulate in bunches after the bundles have been cut and thereby choke the threshing cylinder and concave. rlhis tendency is increased in wet grain and is also due largely to uneven feeding of the bundles; but even when the bundles are supplied in an even order of suc cession, each cut bundle will form a bunch which tends to pass at once to the threshing cylinder. In actual practice, I have found that my improved arrangement of the son called distributing rollers will prevent clogging of the cylinder, and will serve to evenly distribute and feed the cut bundles to the threshing cylinder. 'Ihis action is due, as already indicated in part, to the relative arrangement of the toothed and relatively smooth portions on the said distributing rollers. rIo illustrate more fully, attention is called to the fact that when a bunch or over accumulation of loose grain is brought into contact with the outer pair of distributing rollers, the toothed portions of the latter will tend to spread out the grain, but will insure immediate delivery thereof against the second or inner pair of toothed distributing rollers. This inner pair of toothed rollers are driven at considerably higher speed than the said outer pair of rollers (because the sprocket 82 is smaller than the sprocket 36) and hence the grain engaged by the toothed portions of the said inner rollers will more rapidly feed toward the threshing cylinder the grain caught thereby and which is held only between the smooth portions of the outer pair of rollers. The grain which is still held by the toothed portions of the relatively slow outer distributing rollers will be retarded and, furthermore, the smooth portions of the faster moving inner rollers will have much less feeding eiiiciency. In this way, it is evident that a bunch of grain in passing between the two parts of distributing rollers will be rst spread out and then separated by movement of portions thereof to the threshing cylinder more rapidly than other portions thereof. This produces the desired uniform delivery of the grain to the threshing cylinder and avoids all clogging thereof even when the grain is wet. Also the inner pair of distributing rollers'serve to hold back and prevent grain engaged by the teeth of the threshing cylinder from being instantly drawn into the toothed concave, so that the said threshing cylinder has a sort of combing or carding action on the grain before it has reached the concave. From this it also follows that considerable threshing will be done just before the grain reaches the concave.

What I claim is:

1. The combination with the threshing cylinder of a threshing machine, of bundle feeding and band cutting dwevices, and a multiplicity of pairs of upper and lower distributing rollers having longitudinally spaced diametrically increased sections, the diametrically increased sections of the upper and lower rollers being located inV the same vertical planes, and the diametrically increased sections of the inner and outer pair of rollers being laterally off-set at different vertical planes.

2. The combination with the threshing cyli inder, of a threshing machine, of bundle feeding and band cutting devices, and a multiplicity of pairs of upper and lower distributing rollers having spaced diametrically increased formed by circumferentially spaced teeth, the diametrically increased sections of the upper and lower rollers being located in the same vertical planes, and the diametrically Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

longitudinally sections 

